Notes are the written pitch.
Frequencies are the sounding frequency, for Bb saxophone.
Unless otherwise stated, the impedance spectrum is for a Bb saxophone.

Impedance spectrum of a Bb tenor
saxophone measured using fingering for A6.

This is the third note in the altissimo or very high range. It is not a member of a simple register: although technically it plays rather just below the seventh impedance peak or the third 'large-ish' peak, few saxophonists (except those discerning ones who have seen this site) would be aware of that. Perhaps it is just a cross fingered note whose operating peak falls above the cut-off frequency and so cannot readily be described in terms of an effective length.

The first few peaks are very strong, and would tend to dominate (see comment on sound spectrum below). The weakness of this peak (due to the relatively large cone angle of the saxophone) explains why notes in this range are hard to play and require the player to assist the weak impedance peak of the bore with a strong impedance peak of the vocal tract. See this page for an explanation and some interesting results.

Notes are the written pitch.
Frequencies are the sounding frequency, for Bb saxophone.
Unless otherwise stated, the impedance spectrum is for a Bb saxophone.

Impedance spectrum of a Bb tenor
saxophone measured using alternative
fingering for A6.

This is the third note in the altissimo or very high range. It is not a member of a simple register: although it plays at the fourth impedance peak, perhaps it is just a cross fingered note whose operating peak falls above the cut-off frequency and so cannot readily be described in terms of an effective length. The first few peaks are very strong, and would tend to dominate.

The weakness of this peak (due to the relatively large cone angle of the saxophone) explains why notes in this range are hard to play and require the player to assist the weak impedance peak of the bore with a strong impedance peak of the vocal tract. See this page for an explanation and some interesting results.

Notes are the written pitch.
Frequencies are the sounding frequency, for Bb saxophone.
Unless otherwise stated, the impedance spectrum is for a Bb saxophone.

Impedance spectrum of a tenor
saxophone measured using 2nd alternative
fingering for A6.

This is the third note in the altissimo or very high range. It is not a member of a simple register: it plays at the third 'large-ish' peak, or the sixth peak... perhaps it is just a cross fingered note whose operating peak falls above the cut-off frequency and so cannot readily be described in terms of an effective length.

The weakness of this peak (due to the relatively large cone angle of the saxophone) explains why notes in this range are hard to play and require the player to assist the weak impedance peak of the bore with a strong impedance peak of the vocal tract. See this page for an explanation and some interesting results.

Notes are the written pitch.
Frequencies are the sounding frequency, for Bb saxophone.
Unless otherwise stated, the impedance spectrum is for a Bb saxophone.

Impedance spectrum of a tenor
saxophone measured using 3rd alternative
fingering for A6.

This is the third note in the altissimo or very high range. It is not a member of a simple register: it plays at the third 'large-ish' peak, or the seventh peak... perhaps it is just a cross fingered note whose operating peak falls above the cut-off frequency and so cannot readily be described in terms of an effective length.

The weakness of this peak (due to the relatively large cone angle of the saxophone) explains why notes in this range are hard to play and require the player to assist the weak impedance peak of the bore with a strong impedance peak of the vocal tract. See this page for an explanation and some interesting results.